We are aware that the weather data is the main business of Netatmo.
But making local data accessible to the user as long as it is also transferred to the server (with a grace time for internet outages)
would not only sell you more devices, it would also significantly reduce the load on the servers as much of the data wouldn't need to be accessed through the API any more.

you say its NOT forecasted... how about now 4 years later? is it forecasted?
if not I will return this to the store today.
It is useless to me if I cannot read the sensor data.
A basic 100$ co2 sensor gives you live raw sensor output, if you cannot provide this, you are wasting our time.